Stone-sawing machine.



E. T. POLLARD.

STONE SAWING MACHINE. APPLICATION FILED 0012s, 1910.

Patented Feb. 6, 1912.

e sHBBTs-sHBBT 1.

cnLUMmA I'LANOGRAPH co. WASHINGTON. h. C

WITNESS I E. T. POLLAR-D.

STONE SAWING MACHINE.

APPLICATION FILED OCT. 28, 1910.

Patented Feb. 6, 1912.

6 SHEBTSSHEET 2.

[NVENTOR 50/5012 Z O/Mm! cnLuMBlA PLANOGRAPH $0.. WASHINGTON, n. c.

E. T. POLLARD.

STONE SAWING MAGHINE.

APPLICATION FILED OCT. 28, 1910.-

6 SHEETS-SHEET 3.

J/W ENTOR /f B Y Aizomay cou mum PLANOGRAPU CO..\\/\SIIINGTON. n c.

Patented Feb. 6, 1912.

- E4501) T/ O/MIWL E. T. POLLARD.

STONE SAWING MACHINE.

APPLICATION FILED OCT. 28, 1910.

Patented Feb. 6, 1912.

6 SHEETSSHEET 4.

i fNVE/VTOR W/T/VE/ v 1 EdsonTPoi/aml COLUMBIA PLANOORAPH c0"WASHINGTON. u. c.

E. T. POLLARD.

STONE SAWING MACHINE.

AIPLIOATION FILED OCT. 28, 1910.

Patented Feb. 6, 1912.

6 SHEETS-SHEET 5.

a??? 50/50 [Paiiarbl /1. 78 BY f 1' Altorhey COLUMBIA PLANooooooooooooooooooooooo c.

E. T. POLLARD.

STONE SAWING MAGHINE.

APPLIUATION TILED OUT. 28, 1910.

Patented Feb. 6, 1912.

F/fi 7 f/VVENTOR Aftomey COLUMBIA PLANOnR/ PH c0., WASHINGTON. u. c.

' 5015027 TPaZ/ard.

UNITED STATES PATENT OFFICE.

EDSON ,T. PDLLAR-D, 0F RUTLAND, VERMONT.

STONE-SAWING MACHINE.

To all whom e't may concern Be it known that 1, Emma T. POLLARD, acitizen of the United States, residing at Rutland, county of Rutland,State of Vermont, have invented certain new and useful Improvements inStone-Sawing Machlnes, of which the following is a specification,reference being had therein to the accompanying drawing.

This invention relates to a stone sawing machine and particularly to aconstruction embodying a movable platen and cooperating saw disposed atone side thereof.

The invention has for an object to provide a novel and improvedconstruction wherein the saw is adapted for use either for rippingpurposes in the longitudinal movement of the platen or for crosscutt1ngby a travel of the saw when the platen is at rest.

A further object of the invention is to provide a novel mounting for thesaw by which it may be adjusted in a vertical plane relative to thetravel of the platen upon which the material is carried or may be movedtransversely of such-material.

A further object of the invention is to provide a novel constructionembodying a platen adjustable longitudinally 1n comblnation with a sawcarriage mounted to traverse the path of travel of the platen when atrest.

Other and further objects and advantages of the invention will behereinafter set forth and the novel features thereof defined by theappended claims.

In the draWingsFigure 1 is a plan of the invention; Fig. 2 is a sideelevation thereof; Fig. 3 is an endelevation from the right of Fig. 1;Fig. 4 is an enlarged vertical section on line 44 of Fig. 1; Fig. 5 is alongitudinal section on line 55 of Fig. 6; Fig. 6 is a cross section online 66 of Fig. 5; Fig. 7 is a similar section on line 77 of Fig. 4;Fig. 8 is a detail section on line 88 of Fig. 4; Fig. 9 is a horizontalsection on line 99 of Fig. 7; Fig. 10 is a detail vertical sectionthrough the clutch adjusting levers and connections, and Fig. 11 is adetail vertical section through the power controlling mechanism.

Like numerals of reference refer to like parts in the several figures ofthe drawings.

The numeral 10 indicates the base of the machine upon which the platen11 is mounted to travel in the usual manner. For this Specification ofLetters Patent.

Application filed October 28, 1910.

Patented Feb. 6, 1912.

Serial No. 589,575.

purpose, a shaft 12 is mounted in bearings 13 upon the platen andprovided with wheels 14 adapted to travel upon the tracks 15 carried bythe upper face of the base 10. At the central portion of the platen, arib 1'6 depends from the under face thereof and is slotted at 17 toembrace the shaft 12. This rib carries at its lower end a rack bar 18which engages with a pinion 19 carried by a driving shaft 20 mounted ina bearing 21 upon the base 10. This shaft 20 extends transversely of theplaten and through a carriage base 21. It is provided at its free endwith a driving connection 22 to which power is applied as will behereinafter described.

Above the carriage base, is a support 23 upon which the saw carriage 24is slidingly mounted as shown in Fig. 7. This support is provided withdepending portions 25 seated Within the carriage base 21 to slidevertically therein. The portions 25 are provided with a vertical slot 26to allow movement over the platen driving shaft 20. lVithin the carriagebase, vertically disposed screw shafts 27 are mounted against rotationas shown at 28 and threaded thereon is a gear collar 29 provided with abeveled gear 30. This collar is pivotally mounted in the lower portionof the support 23 and held against vertical movement independent thereofby the set collar 31 as shown in Figs. 4 and 7. The gear 30 may beactuated by any desired connections, for instance the cooperating gear32 carried by the shaft 33 mounted in the bracket 34 and carrying asprocket wheel 35 from which a driving chain 36 extends to the oppositeend of the carriage to operate a similar raising connection. One of theshafts 33 is shown as provided with an operating lever 37. By thismeans, the support 23 carrying the saw carriage may be adjustedvertically to any desired extent.

For the purpose of driving the saw 38 in either position, for ripping orcross cutting, the motor 39 is mounted upon the carriage 24 and theshaft thereof provided with a gear 40 meshing with a gear 41 upon thesaw driving shaft 42 which extends longitudinally of the carriage 24 andis mounted in suitable bearings 43 and 44. This shaft is provided with abeveled gear 45 meshing with a cooperating gear 46 carried by thecountershaft 47 which is mounted in bearings 43 and extends transverselyof the block adjacent thereto.

driving shaft and saw carriage. The saw 38 is adapted to be clamped tothe countershaft connection 50 to the shaft 42 when used for crosscutting work, or to be clamped by the connection 50 to the shaft 42 whenused for ripping work during the travel of the platen as indicated bydotted lines in Fig. 3. The carriage is fed longitudinally for crosscutting work by means of a threaded nut 51 depending therefrom as shownin Fig. t and-mounted upon the shaft 52 which is journaled in thesupport 23 and provided with a driving connection 53 as hereinafterdescribed. The carriage is also provided with an indicator 54 whichcooperates with a scale 55 slidably carried upon the support so that thelateral extent of travel may be positivelydetermined as is desirablewhere the cut is and to be for a length less than the width of thestone.

Any desired driving connection may be used for the platen and sawcarriage shafts. one form of which is here shown and com prises a motor60 connected through the ordinary driving means 61 to effect high or lowspeed or a reversal of the driving shaft 62 which carries sprockets 63and 64'. with an intermediate clutch member 65 connected by an operatingrod 66 with the lever 67. From the sprocket 63, a chain 68 extends tothe driving connection 22 upon the shaft 20 for driving the platen. Fromthe sprocket 64:, admin 69 extends to the driving connection 53 forfeeding the saw carriage. It will be seen that the shifting of theclutch 65 effects either the feed of the platen or the feed of the sawcarriage and permits an automatic operation by feeding the block to besawed into proper position and then shifting the lever 67 to feed thesaw 38 into contact with the side of the The clutch members of thecontrolling mechanism shown at 61 are adapted to be actuated in theusual manner through the rods 70 and 71, the former of which isconnected to a crank arm 72 carried by a sleeve 73 mounted upon theactuating rod 74 which carries the arm 7 5 connected to the rod 71. Thesleeve 73 also carries an operating lever 76 secured thereto while therod 74: is provided with a simi lar lever 77. The platen is providedwith an indicating pointer 78 which cooperates with a scale 79 slidablymounted in brackets 80 carried by the base 10, as shown in Figs. 2and 3.

In the operation of the invention, the

stone cutting tool may be of any desired character and, when disposedupon the countershaft as shown by full lines in Figs. 1, 2 and 3, isadapted for cross cutting and jointing work upon the material carried bythe platen. When so used, the platen is fed forward to the extentdesired which may be determined by the cooperating scale and the sawcarriage then actuated to produce the desired length of out while theplaten is at rest. The driving connections shown permit the intermittentoperation of the platen and the feed of the saw carriage by actuating asingle lever so that any movement of the platen is prevented when thecross cutting saw is in action. For the purpose of ripping or sawingmaterial during the travel of the carriage, the saw is shifted to themain shaft extending from the motor and the proper speed of driveapplied to the parts which is determined by the character of materialoperated upon and the type of cutting tool used. The saw carriage isalso adjustable vertically so that any desired depth of cut may be madeduring the travel of the platen by the saw in its ripping action and asimilar depth effected by the cross cut saw which renders the machineparticularly adaptable for jointing work or where a section is cut fromthe body of the material ope ated upon. By altering the size of sawblade used, the machine is adapted for checking and by suitably blockingbeneath the material cut, the variety of such checks may be extended- Byslidably mounting the scales upon the base or support, they can\beadjusted relative to the pointers upon the platen and saw carriage, sothat the pointer may be set at zero after making a cut and willindicate, in the travel of the movable members, the exact distancerequired between cuts. The invention presents a simple, efiicient andeconomically constructed machine adapted for many varieties of ripcutting during the travel of the platen or for cross cutting between theintermediate movements of the platen.

Having thus described my invention and set forth its merits, what Iclaim and desire to secure by Letters Patent is 1. In a stone sawingmachine, a movable platen, a saw carriage movable transversely of saidplaten, saw driving shafts mounted in the same horizontal plane uponsaid carriage and disposed at right angles to each other, and means fordriving either said platen or carriage forward, said driving means beingadapted to be shifted from one to the other by a single lever.

2. In a stone sawing machine, a movable platen, a saw carriage movabletransversely thereof, a driving shaft extending longitudinally of saidcarriage and provided with a saw connection at its outer end, acountershaft extending at an angle from said driving shaft and gearedthereto, said shafts being mounted in the same horizontal plane, asupport upon which said carriage is mounted, collars mounted upon saidsupport,rais- 'ing shafts extending through said collars,

and means for rotating said collars.

3, In a stone sawing machine, a movable platen, a saw carriage movabletransversely thereof, a driving shaft extending longitudinally of saidcarriage and provided with a saw connection at its other end, acountershaft extending at an angle from said driving shaft and gearedthereto, a support upon which said carriage is mounted, collars mountedin said support, raising shafts extending through said collars, meansfor rotating said collars, a base beneath said support upon which saidshafts are mounted, and an extension from said support slidably disposedin said base.

4. In a stone sawing machine, a movable platen, a saw carriage movabletransversely thereof, saw driving shafts mounted upon said carriage inthe same horizontal plane, a support beneath said carriage, dependingsleeves at the opposite ends of said carriage, a base adapted toslidably receive said sleeves, threaded shafts carried by said base,collars mounted upon said support to engage said shafts, and means forrotating said collars.

5. In a stone sawing machine, a movable platen, a saw carriage movabletransversely thereof, a motor and saw driving shaft upon said carriage,a support beneath said carriage, depending sleeves at the opposite endsof said carriage, a base adapted to slidably receive said sleeves,threaded shafts carried by said base, collars mounted upon said supportto engage said shaft, and means for rotating said collars.

6. In a stone sawing machine, a movable platen, a saw carriage movabletransversely thereof, a motor and saw driving shaft upon said carriage,a support beneath said oarriage, depending sleeves at the opposite endsof said carriage, a base adapted to slidably receive said sleeves,threaded shafts carried by said base, rotating collars mounted upon saidsupport to engage said shafts, beveled gears carried by said collars,meshing beveled gears carried by said driving shafts, and a chain andsprocket connect-ion between said driving shafts.

In testimony whereof I aflix my signature in presence of two witnesses.

EDSON T. POLLARD.

Witnesses:

Gno. O. COBB, WM. J. MOGARRY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G.

